194130528 has 48 divisors (see below), whose sum is σ = 514382400. Its totient is φ = 64102016.

The previous prime is 194130493. The next prime is 194130533. The reversal of 194130528 is 825031491.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 823 + ... + 19721.

It is an arithmetic number, because the mean of its divisors is an integer number (10716300).

Almost surely, 2^194130528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194130528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257191200).

194130528 is an abundant number, since it is smaller than the sum of its proper divisors (320251872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

194130528 is a wasteful number, since it uses less digits than its factorization.

194130528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19019 (or 19011 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 194130528 is about 13933.0731714148. The cubic root of 194130528 is about 579.0258399581.

The spelling of 194130528 in words is "one hundred ninety-four million, one hundred thirty thousand, five hundred twenty-eight".